1DLC

CRYSTAL STRUCTURE OF INSECTICIDAL DELTA-ENDOTOXIN FROM BACILLUS THURINGIENSIS AT 2.5 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of insecticidal delta-endotoxin from Bacillus thuringiensis at 2.5 A resolution.

Li, J.D.Carroll, J.Ellar, D.J.

(1991) Nature 353: 815-821

  • DOI: 10.1038/353815a0
  • Primary Citation of Related Structures:  
    1DLC

  • PubMed Abstract: 
  • The structure of the delta-endotoxin from Bacillus thuringiensis subsp. tenebrionis that is specifically toxic to Coleoptera insects (beetle toxin) has been determined at 2.5 A resolution. It comprises three domains which are, from the N- to C-termini, a seven-helix bundle, a three-sheet domain, and a beta sandwich ...

    The structure of the delta-endotoxin from Bacillus thuringiensis subsp. tenebrionis that is specifically toxic to Coleoptera insects (beetle toxin) has been determined at 2.5 A resolution. It comprises three domains which are, from the N- to C-termini, a seven-helix bundle, a three-sheet domain, and a beta sandwich. The core of the molecule encompassing all the domain interfaces is built from conserved sequence segments of the active delta-endotoxins. Therefore the structure represents the general fold of this family of insecticidal proteins. The bundle of long, hydrophobic and amphipathic helices is equipped for pore formation in the insect membrane, and regions of the three-sheet domain are probably responsible for receptor binding.


    Related Citations: 
    • X-Ray Analysis of the Crystalline Parasporal Inclusion in Bacillus Thuringiensis Var. Tenebrionis
      Li, J., Henderson, R., Carroll, J., Ellar, D.
      (1988) J Mol Biol 199: 543

    Organizational Affiliation

    Medical Research Council Laboratory of Molecular Biology, Cambridge, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DELTA-ENDOTOXIN CRYIIIAA584Bacillus thuringiensisMutation(s): 0 
UniProt
Find proteins for P0A379 (Bacillus thuringiensis subsp. tenebrionis)
Explore P0A379 
Go to UniProtKB:  P0A379
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 117.09α = 90
b = 134.26β = 90
c = 104.5γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 1994-06-22 
  • Released Date: 1994-09-30 
  • Deposition Author(s): Li, J.

Revision History  (Full details and data files)

  • Version 1.0: 1994-09-30
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance